1825AC473MAT1A Equivalent & Substitute Parts

Part Overview

The 1825AC473MAT1A is a 0.047 µF ceramic capacitor rated for 1000V (1kV) with X7R temperature coefficient, manufactured by KYOCERA AVX. This high-voltage surface-mount multilayer ceramic capacitor (MLCC) is designed for general-purpose applications requiring stable capacitance across a wide operating temperature range of -55°C to 125°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility within the 1825 (4564 Metric) package footprint.

Substiute Parts

1825AC473MAT1A

KYOCERA AVXIn Stock: 10071825AC473MAT1A Datasheet

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1825AC473KAT1A

KYOCERA AVXIn Stock: 23661825AC473KAT1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1825AC473MAT1A is determined by the following critical parameters:

• Capacitance Value: Must be 0.047 µF (no tolerance variation acceptable)
• Voltage Rating: Must be 1000V (1kV) minimum
• Temperature Coefficient: Must be X7R for consistent performance across the operating temperature range
• Package / Case: Must be 1825 (4564 Metric) for PCB footprint compatibility
• Mounting Type: Must be Surface Mount, MLCC
• Physical Dimensions: Must match 4.50mm L × 6.40mm W footprint
• Compliance: Must maintain ROHS3 and REACH compliance status

The tolerance specification (±20% vs ±10%) is permitted to vary, as tighter tolerance represents an acceptable upgrade path. All substitute parts must be from active production status to ensure long-term availability.

Parameter Comparison

Engineering Selection Recommendations

The 1825AC473KAT1A qualifies as a direct substitute for the 1825AC473MAT1A. Both parts are manufactured by KYOCERA AVX and maintain identical electrical and mechanical specifications with the exception of capacitance tolerance. The 1825AC473KAT1A features a tighter tolerance specification of ±10% compared to the ±20% tolerance of the original part, which represents an upgrade in precision without any performance degradation.

Both parts maintain active production status, ensuring supply chain continuity. Both are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The identical package footprint (1825 / 4564 Metric) and physical dimensions ensure seamless PCB integration without layout modifications.

Selection between these parts should be based on tolerance requirements for the specific application. The 1825AC473KAT1A is suitable for applications requiring tighter capacitance tolerance control, while the 1825AC473MAT1A remains appropriate for general-purpose applications with standard tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can the 1825AC473KAT1A replace the 1825AC473MAT1A in existing designs?

A: Yes. Both parts share identical capacitance value, voltage rating, temperature coefficient, package footprint, and physical dimensions. The tighter tolerance of the substitute part does not create compatibility issues.

Q: What is the primary difference between these two parts?

A: The capacitance tolerance differs. The 1825AC473MAT1A has ±20% tolerance, while the 1825AC473KAT1A has ±10% tolerance. This makes the substitute part more precise for applications requiring tighter capacitance control.

Q: Are both parts suitable for high-voltage applications?

A: Yes. Both parts are rated for 1000V (1kV) and feature X7R temperature coefficient, making them suitable for high-voltage general-purpose applications across the -55°C to 125°C operating range.

Q: Will the substitute part fit the same PCB footprint?

A: Yes. Both parts use the 1825 (4564 Metric) package with identical physical dimensions of 4.50mm L × 6.40mm W, ensuring direct PCB compatibility without layout changes.

Q: Are there any compliance or regulatory differences?

A: No. Both parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity rating.

Q: Which part should I select for new designs?

A: Selection depends on tolerance requirements. For applications requiring tighter capacitance tolerance, the 1825AC473KAT1A is the appropriate choice. For standard tolerance applications, either part is acceptable based on availability and cost considerations.